Cab-spring



W; KINGSLEY.

Carriage-Spring Patented May 8, 1860.

Witnesses= i v Inventor. %%20, g a/wi AM.PHflTO-L1TH0,0D. N.Y- SSSSSSSSSSSSSSSSS J UNITED STATES PATENT OFFICE.

WM. KINGSLEY, OF NEWV YORK, N. Y., ASSIGNOR TO HIMSELF, AND .T. J. FIELDS, OF BROOKLYN, NEW YORK.

CAR-SPRING.

Specification of Letters Patent No. 28,237, dated May 8, 1860.

To all whom it may concern:

Be it known that I, WILLIAM KINGSLEY, of the city, county, and State of New York, have invented, made, and applied to use a certain new and useful Improvement in Springs for Carriages, Cars, &c.; and I do hereby declare that the following is a full, clear, and exact description of the nature of my said invention, reference being had to the annexed drawing, making part of this specification, wherein- Figure 1, is an elevation of my said spring. Fig. 2, is a similar view with the spring under compression and Fig. 3, is an end view of said spring.

Similar letters denote the same parts.

The nature of my said invention relates to an arrangement of toggle levers acting to,

compress an india rubber or equivalent spring, and relieve concussion between the axles and bodies of carriages or under similar circumstances.

In the drawing A, A, are toggle levers having their fulcrums or centers 1, 1, in the arch bar B, or in any suitable attachment to the carriage; C, is a bearing fork attached to one of the parts between which the spring is introduced. This fork is shown in plan in Fig. 6.

2, 2, are bolts passing through slots in the toggle arms A, A. The opposing faces 3, 3, of the toggle arms A, A, are formed as the segment of an eccentric and receive between them the block of rubber E, or equivalent elastic substance.

The operation of any weight tending to bring B, and 0, toward each other causes the toggle arms A, A, to compress the spring E, and if the pressure is greater than usual the end of the rubber E, takes the plate D, of the arch bar B, and becomes a direct acting spring.

The arm A, forming one of the toggles is shown in plan in Fig. 4c. The arch bar B, is shown in plan in Fig. 5. The spring E, is shown in perspective in Fig. 7, and Fig. 8, represents a double elliptic spring that might be substituted for the spring E, although I prefer and use the spring E, Fig. 7.

The toggle levers in acting on the spring E, compress the same but little compared with the movement given between the parts B and C, so that a rigid rubber spring allows an extended movement and easy action on the vehicle; and according to the angle at which these toggle levers stand to each other so the spring will be more or less rigid in its action.

What I claim and desire to secure by Let ters Patent, is

1. The toggle arms A, A, arranged as specified to compress a spring between the ends of said toggle arms and give a yielding motion between the respective parts as set forth.

2. I claim the arrangement of the toggle arms A, A, and bearing fork C, combined with the rubber or elastic block E, taking the plate D, when under heavy compression as set forth.

In witness whereof I have hereunto set my signature this third day of April 1860.

WM. KINGSLEY.

IVitnesses:

LEMUEL W. SERRELL, THOS. GEO. HAROLD. 

